Sash-lock and antirattler.



PATBNTED SEPT. 19, 1905.

H. GONBOY. SASH LOCK AND ANTIRATTLBR.

Gbbowvg- APPLICATION FILED 211.28, 1905- warren STATES PATENT OFFICE.

HENRY GONBOY, OF SAN FRANCISCO, CALIFORNIA.

SASH-LOOK AND ANTIRATTLER.

To all whom it may concern:

Be it known that I, HENRY OoNBoY, a citizen of the United States, residing at San Francisco, in the county of San Francisco and State of California, have invented certain new and useful Improvements in Sash-Locks and Antirattlers, of which the following is a specification.

This invention relates to an improved sashlock and antirattler, the object of the invention being to provide a device of this character which will lock the two sashes of a window in such manner that it is impossible to unfasten the look by means of a thin plate or instrument inserted between the twosashes or to cut through the look by a saw so inserted, also one the eflicient operation of which 'will not be affected by the shrinkage of the sashes on drying or by their expansion in wet weather, which will draw the two sashes together tightly, so as to prevent rattling, in which it can be seen at a glance from a distant point of the room and from a much lower level than the window whether the lock is fastened or unfastened, and which may also be used when desired to suspend transparent pictures, such as are frequently suspended in front of windows.

In the accompanying drawings, Figure l is a perspective view of a portion of two window-sashes having the device thereon open. Fig. 2 is a similar view showing the lock closed. Fig. 3 isa longitudinal section. Fig. 4 is a cross-section of the upper portion of the lock.

Referring to the drawings, 1 represents a plate screwed to the top of the lower side 2 of the upper sash. Upon this plate is pivoted, as shown at 3, a latching-plate 4, which when turned at right angles to the side of the frame passes into a slot or recess 5, formed in a plate 6, screwed to the top of the frame of the lower or inner sash. When said plate 4 has passed into said slot and beneath the upper lip 7 of the plate 6, the two sashes are locked together, so that no vertical movement thereof is possible. To prevent, however, the plate being rotated about its pivot by means of a blade inserted from the outside between the two sashes, the following construction is provided: Upon said plate 4 and integral therewith is formed an arched slideway 8, having inwardly-extending overhanging flanges or guides 9, between which and the curved base 10 of the slideway slide the edges of a curved locking-bar 11, oper- Specification of Letters Patent. Application filed April 28, 1905. Serial No. 257,819.

Patented Sept. 19, 1905.

ated by a handle 12. Said locking-bar is prevented from dropping out of said curved guideway by a screw 13, the end of which moves in a slot 14:, formed in the base of the guideway. When the plate 4 has been turned through a right angle to pass into the slot 5, which may conveniently be done by pressure applied to the handle, the next operation is to press forwardly and downwardly upon said handle, thereby moving downward the locking-bar 11, so that the lower edge thereof comes into contact with the side of the lower sash-frame, and by further downward pressure upon said locking-bar the lower sash may be forced inward toward the upper or outer sash, thus clamping the two sashes together and preventing rattling. The engagement of the locking-bar 11 with the inner side of the lower sash acts as a lock and renders it impossible to turn the plate through an angle by means of a blade inserted from the outside. The curved locking-bar slides snugly and smoothly between the overhanging flanges 9 and the base of the curved guideway.

It is rendered very difficult to open the window from the outside by cutting through the sash-lock on account of the great thickness of the curved guide, which has to be cut through in addition to the latching-plate.

It will be seen that the device automatically adjusts itself to expansion and contraction of the window-sash from moisture or dryness, for if the window-sash should contract then the locking-bar would have to merely descend farther in order to press against the side of the sash. An advantage of this construction is that it can be seen at once from a distant point of the room whether the lock is fastened 0r unfastened, and a child standing below the window does not have [to get up on a chair to ascertain whether the sash-lock is fastened, as is the case with many devices at present in use, for this is seen at once from the position of the knob or handle. This knob can also be utilized to hang transparent pictures, such as are sometimes hung against windows.

I claim- 1. A sash-lock and antirattler comprising a plate pivoted to the upper sash and adapted to be swung over the lower sash to prevent vertical movement of the sashes, said plate having a curved guideway, and a curved locking-bar sliding in said guideway and moving forwardly and downwardly and engaging IIO the front side of the lower sash to prevent return pivotal movement of said swinging plate, substantially as described.

2. A sash-lock and antirattler comprising a recessed plate secured to the lower sash and a plate pivotally secured to the upper sash and swinging across the lower sash and engaging said recessed plate thereon to prevent vertical movement of the sashes and having an arched guideway which extends over said plate on the lower sash, and a curved lockingbar sliding in said arched guideway and moving forwardly and downwardly to engage the front side of the lower sash, substantially as described.

3. A sash-lock and antirattler comprising a recessed plate secured to the lower sash and a plate pivotally secured to the upper sash and swinging across the lower sash and engaging said recessed plate thereon to prevent a plate pivotally secured to the upper sash and swinging across the lower sash and engaging said recessed plate thereon to prevent vertical movement of the sashes and having an arched guideway which extends over said plate on the lower sash, and a curved lockingbar sliding in said arched guideway and moving forwardly and downwardly to engage the front side of the lower sash, and means for limiting the downward movement of said locking-bar, substantially as described.

5. A sash-lock and antirattler comprising a recessed plate secured to the lower sash and a plate pivotal-1y secured to the upper sash and swinging across the lower sash and engaging said recessed plate thereon to prevent vertical movement of the sashes and having an arched guideway which extends over said plate on the lower sash, a curved locking-bar sliding in said arched guideway and moving forwardly and downwardly to engage the front side of the lower sash, means for limiting the downward movement of said lockingbar, and a knob on said locking-bar, substantially as described.

In witness whereof I have hereunto set my hand in the presence of two subscribing witnesses.

HENRY CONBOY. Witnesses:

FRANCIS M. WRIGHT, BESSIE GORFINKEL. 

